Lip-turning machine.



S. J. WENTWORTH. u'P TURNING MACHINE,

APPLICATION FILED DEC. I8. 1915.

Patented Oct. 22, 1918.

3 SHEETS-SHEET S. J. WENTWORTH.

LIP TURNING MACHINE.

APPLlCATlON FILED 05c. 18. 1915.

Patented Oct. 22, 1918.

3 SHEETS-SHEET 2.

S. J. WENIWORTH. UP TURNING MACHINE APPLICATION FILED DEC. 18. 1915.

1 ,282, 340, Patented Oct. 22, 1918.

3 SHEETS-SHEET 3.

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n1: mmms PETERS ca, Fnoflruruo" wasnmamu. n. c.

SAMUEL J. WENTWORTI-I, or NEWPORT, KENTUCKY, ASSIGNOR, BY. Musl m ASSIGN- MENTS, T0 UNITED SHOE MACHINERY oonronarroiv, or PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

LIP-TURNING gamma To all whom it may concern:

Be' it known that I, SAMUEL J. ENT- oirrH, a citizen of the United States, residing at Newport, in the county of Campbell and State of Keni zucky have invented certain new and useful Improvements in Lip Turning Machines andI do hereby declare the follovving to be a full, clear, and exact description of the invention, such. as will enable Others skilled in the art to which it appertains to make and use the same.

' This invention relates tdIip-turning machines.

The primary object of the present invention is to improve the construction and mode ofop eration of lip-turning machines to better adapt the sole produced for good shoe making.

Th6, lip-turning machines now in commercial use'for turning back the channel lip on outsoles, employ a rotary tool WlllCll rldes over the face of the channel and lip to turn the lip back against the sole preparatory to the stitching operation. In the turning the lip back; the rotary tool glazes the face of the channel and groove and the under face ofthe 1ip These glazed portions are objectionable because they do not allow the lip 'tohe effectively cemented back into the channel after the stitching operation. I

Que feature of the inventlon contemplates the provision in a lip turning machine of an improved lip-setting tool arranged to reclprocate acrossthc ll'p in a plane substantially parallel with the plane'ofthc sole to' turn the lip down against the surface of the sole. In turning the lip down upon the sole, the tool'acts only on a small portion of the lip and leaves it in good condition to be cemented back into the channel.

In addition to the features ofinvention above referred to, thepresent invention also consistsin 'cer'tain devices and combinations of parts hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art from the specific description ,ofthe preferred embodiment of the invention hereinafter contained.

The several features of the invention are illustrated in the accompanying drawings,

in which Figure Ifis a plan view. of a lip- Specif cation of Letters Patent.

'vation of the lip turning machine; Fig/3 is arear end elevation partly in section, of the lip-turning machine; Fig. 4 is a front end elevation of the lip-turning machine; Fig. 5 is a detail view'in vertical section showing the upper feed roll'and lip-turning tool;and F'tiis a detail view in vertical section showing the feed rolls.

The'machine illustrated in the dra'vings is designed for turning back the lip on a McKay outsole. The sole is supported on a feed roll 10 and clamped against this feed roll by means of a channel feed roll 12. The sole is guided in its movement by a plow 14 which has a face 16 adaptedto ride in a groove of the sole and bear againstthe shoulder of the lip. As the sole moves past the plow the lip is turned up to a substantially vertical position and is then turned back against the surface ofthe sole'by a lipturning tool 18. l l

V The supporting feed roll 10 is built'up in sections (see Figs. 2 andG). A feeding sec tion 20 is located in the axis upon which the sole is turned and is fixed to a driving shaft 22 journ aled in the main frame 24 of the machine The"circumferentia1 edge the section 20 is provided with teeth 26, and the edge is comparatively narrow so that, when the sole is turned aloout sharp angle, the teeth will not chew up the sole; 'The other section 28 of the feed roll is loosely mounted up on the shaft QQ-"adjacent the section 20, but is connected for movement with the feeding sectionby a pin30 fixed in the section 20 which projects through a slot 32 in the section 28 (see'Fig. 4). The circumferential edge of the section 28 is also provided with teeth and ordinarily assists section 20in feeding the sole. With this construction, a series of two or more sections can be mounted adjacent one another to give a substantial bearing face forsupport ing the sole and to give a sufiicient biting area for the feed teeth in carrying the sole through the machine. The mounting of the sections of the feed roll for differential movement faeilitates feeding the sole around Patented Oct. 22, 19.18. Application filed December 18, 1915. Serial No. 67,541.

the sole, and the movement of the sole by the operative in bringing it around an angle will move the loose section 28 relatively to the feeding section.

The channel feed roll consists of a series of teeth 34 formed on a sleeve 36 which is fixed on the end of a hollow shaft 38 journaled in a bearing 40 on a swinging frame 42. The teeth 34 are arranged to engage the channel of the sole at a portion opposite the feed roll 10, and the roughening of the face of the sole channel by the teeth 34 aids in forming a good cementing surface to which the lip may be cemented.

The plow 14 is mounted on a stationary plate 44 immediately in front of the channel. feed roll, and its working face 16 is close to the bite of the feed rolls to adapt the machine for working on soles having sharp toes. The plate 44 is held in position by means of a pair of braces 46 which are fastened to a split collar 48 mounted on the end of the bearing 40 of the swinging frame 42.

After the lip has been turned by the plow, it is engaged by the lip-turning tool 18 and turned over against the face of the sole- The lip-turning tool consists of a hammer fixed to the end of a plunger 50 slidably mounted within the hollow shaft 38. The working face of the hammer is ar ranged above the face 16 of the plow and is reciprocated back and forth across the lip in a plane substantially parallel wlth the face of thesole to turn the lip down against the sole. The lip-turning tool or hammer 18 is guided in a rectangular slot 52 in the plate 44 which holds it in alinement. The plunger 50 extends beyond the end of the shaft 38 and is provided with an arm 54 which is connected by means of a universal coupling 56 and connecting rod 58 with an eccentric 60 on the main driving shaft 62.- The rear end of the plunger is held in alinement (Figs. 2 and 3) by means of a plate 64 which is mounted between a collar 66 on the end of the plunger and a collar 68 on the end of a stud 70 mounted in the main frame of the machine.

To provide for treatment of different thicknesses of soles, the channel feed roll and lip-turning tool are mounted in a swinging frame .and arranged to be moved relatively. to the supporting feed roll to automatically adjust themselves for the different thicknesses of soles. The swinging frame 42, Fig. 1, is ivotally mounted upon an auxiliary shaft 2 which is journaled in the main frame of the machine. The shaft 38 and the plunger 50, which carry the channel feed roll and the lip-turning tool respectively, are mounted in the bearing 40 of the swinging frame. When the swinging frame is oscillated on the shaft 72, the lip-turning tool and feed roll move with it. Theuniversal coupling 56 on the plunger 50 permits this movement without interfering with the reciprocation of the lip-turning tool, and the plate 64 has-a slottedconnection 74 with the stud 70 to provide for the swinging movement ofthe'frame." An arm 76 projecting from the bearing 40 of the swinging frame 42 is normally held against a set screw 78 in the machine frame by a spring 80 which is connected between the arm 7 6 and a bolt 82 mounted in the base of. the machine frame. When turning the lip on the sole, the spring 80 presses the channel feed roll and plow against the sole and the set screw 7 8 prevents an excess pressure on the sole. The spring 80 will automatically adjust the channel feed roll relatively to the supporting feed rollfor different thicknesses of soles, and the set screwmay be adjusted to limit their relative position. The bolt 82 has awing nut 84 by which the tension of the spring can be adjusted to vary the clamping effect of the feed roll upon the sole. To separate the feed rolls for the insertion and removal of work, the frame 42 maybe rotated by a foot treadle (not shown) which is connected by means of a rod 86 with an arm 88 projecting from theside of the frame.

The feed rolls and lip turning tool are operated through connections with the main driving shaft 62. Theshaft 62 is provided with a step driving pulley 90 which may be connected with a source of power by the belt 92. The lip-turning tool is reciprocated at high speed by the eccentric 60 on the shaft 62, and to properly proportion the speed of the feed rolls the auxiliary shaft 72 for driving the feed rolls is geared to the main shaft by a worm .94. The feed rolls are driven at the proper relative speed and in opposite directions by a train of gearing which consists of a gear 96 pinned to the auxiliary shaft and meshing with a gear 98 loosely mounted upon the stud 70,"a gear 100 pinned to the gear, 98 '(Fig. 3) and meshing witha gear 102 on the supporting feed roll shaft, and a gear 104 loosely mounted on the auxiliary shaft, the gear 104 also meshing with a gear'106 fixed to the channel feed roll shaft. To assist the operative in guidingthe shoe, the machine 'is provided with an edge guide which consists of a roll 108 for engaging the edge of the sole which is mounted on a slide 110. -The slide 110 issupport ed on a rod 112 mounted in the split collar 48 and is pressed toward the feed rolls bya spring 114. The movement of the slide is limited by meansofa pin 116 mounted in the rod 112 and projecting through a slot 118 in the slide. f 'l While the invention has been illustrated for use in turning the lip on McKay soles,

obviously it canbe modified to be usedlfor turning over the lip on any type of a sole. The feed rolls are particularly adapted to clamp the sole in position and to properly support it while the lip is being turned down. By supporting the sole on the circumferential edge of the feed rolls, a molded sole can be operated upon as readily as a flat sole. The compact arrangement of the lipturning tool, plow, and feed rolls, facilitates the use of the machine in working on pointed toes. The supporting feed roll, further, particularly adapts the machine for working on soles with sharp toes. The character of tools used in turning over the lip leaves the lip in an excellent condition to be cemented back into the channel.

Having thus specifically described a preferred form of the invention, what is claimed as new is 1. A lip-turning machine having, in combination, feed rolls arranged to engage opposite sides of a lipped sole with their circumferential faces, a lip-turning tool constructed and arranged to turn the lip down against the sole, and means to reciprocate the tool across the lip.

2. A lip-turning machine having, in combination, a support for a lipped sole, a lipturning tool arran ed to reciprocate in a plane above and. su stantially parallel with the plane of the supported sole and having its work engaging portions located wholly above the plane of the face of the sole, and means to reciprocate the tool'to carry it back and forth across the lip to turn the lip down against the face of the sole.

3. A lip-turning machine having, in combination, means for supporting and feeding a lipped sole, a plow for turning up the lip of the sole having a face for engaging the sole, a lip-turning tool having its work engaging portions located wholly above the face of the plow for turning the lip back against the surface of the sole, and means to reciprocate the tool back and forth across the lip in a plane substantially parallel with the plane of a supported sole.

4. A lip-turning machine having, in combination, means for supporting and feeding a lipped sole, a lip-turning tool for turning back the lip against the surface of the sole, means for moving said tool with relation to the supporting means to adjust it for operating on different thicknesses of soles, and means for reciprocating the tool.

5. A lip-turning machine having, in combination, a feed roll mounted on a fixed shaft 7 having an axis substantially parallel with the plane of movement of a sole, a feed roll mounted on a movable shaft having an axis substantially parallel with the axis of the first mentioned shaft, a lip-turning tool mounted for movement with the movable shaft toward and from the fixed shaft, means for rotating said shafts, and means for actuating the tool to turn the lip over against the surface of the sole.

6. A lip-turning machine having, in combination, means for supporting and feeding a lipped sole, a lip-turning tool having its work engaging portions located wholly above the plane of the face of the sole and arranged to turn the lip down against the face of the sole, and means to reciprocate the tool back and forth across the lip in its turned down position in a plane substantially parallel to the plane of the sole.

7. A lip-turning machine having, in combination, a lip-turning tool, and means for feeding a channeled sole to the tool comprising, a channel roll for engaging the sole channel with its circumferential face, and a supporting roll for engaging the sole with its circumferential face at a portion opposite the channel.

8. A lip-turning machine having, in combination, means for supporting and feeding a lipped sole comprising, a sole support and a roll engaging with its periphery the lipped surface of the sole outside of the lip, and provided at its end with a recess, a lip-turning tool operating in said recess, and means for actuating said tool.

9. A lip-turning machine having, in combination, mechanism for feeding and supporting a lipped sole comprising, a sole support and a roll engaging with its periphery the lipped surface of the sole outside of the lip, a plunger mounted within the roll, a lipturning tool attached to said plunger, and means to actuate the plunger.

10. A lip-turning machine having, in combination, mechanism for supporting and feeding a channeled sole comprising, a channel engaging roll and a sole supporting roll opposite the channel roll, said rolls being mounted on drivingshafts, a movable frame in which the channel roll shaft is journaled, a lip-turning tool mounted in said frame, means to actuate the tool and rolls, and a spring acting on the frame to clamp the sole between the rolls.

SAMUEL J. WENTWORTH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

